ORCID Profile
0000-0003-2453-662X
Current Organisation
University of Nevada Las Vegas
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Publisher: MDPI AG
Date: 07-07-2017
DOI: 10.3390/ARTS6030010
Publisher: College Publishing
Date: 02-2010
DOI: 10.3992/JGB.5.1.88
Abstract: This paper compares two cases: It relates to the development of new urban sub-centres in China, and the relationship of these sub-centres to ‘Network City’ theory. As cities move towards more polycentric systems, the case of Potsdamer Platz Berlin, compared to Zhenru Sub-Centre in Shanghai, is discussed. Both are transport-oriented developments promoting mixed-use density and transport-oriented development. According to the documentation by Shanghai municipality, this new urban centre, which is currently in its planning phase, is supposed to become a ‘sustainable sub-centre for a growing metropolis.’ The author, who has intimate knowledge of the Berlin case, was asked to advice on the Chinese project, based on the Potsdamer Platz experience. After some hesitation, a series of careful recommendations were formulated for the design and development of the Zhenru Sub-Centre, knowing that it is rather difficult to translate from one case to the other. The conclusion includes five recommendations for the urban design of such sub-centres, to ensure a delivery of economical, social and environmental sustainable outcomes.
Publisher: Springer Singapore
Date: 15-12-2021
Publisher: SAGE Publications
Date: 27-05-2015
Abstract: Reverse logistics in construction refers to the movement of products and materials from salvaged buildings to a new construction site. While there is a plethora of studies looking at various aspects of the reverse logistics chain, there is no systematic review of literature on this important subject as applied to the construction industry. Therefore, the objective of this study is to integrate the fragmented body of knowledge on reverse logistics in construction, with the aim of promoting the concept among industry stakeholders and the wider construction community. Through a qualitative meta-analysis, the study synthesises the findings of previous studies and presents some actions needed by industry stakeholders to promote this concept within the real-life context. First, the trend of research and terminology related with reverse logistics is introduced. Second, it unearths the main advantages and barriers of reverse logistics in construction while providing some suggestions to harness the advantages and mitigate these barriers. Finally, it provides a future research direction based on the review.
Publisher: IGI Global
Date: 2014
DOI: 10.4018/978-1-4666-6220-9.CH010
Abstract: Reverse Logistics (RL) is an innovation able to bring about immense benefits for organisations in a wide range of industries through enhancing the performance of supply chain procedures. Yet, evidence demonstrates that RL has remained unexploited mainly due to the lack of knowledge about its benefits, enablers, and major aspects of its adoption and implementation. In this context, promoting the adoption and diffusion of RL into the supply chain of organisations has been recommended frequently. This chapter provides a response to such need by (1) explaining the phenomenon and dispelling the confusions surrounding the RL concept, (2) clarifying the major drivers and barriers of RL and highlighting the role it can play in enhancing the performance of conventional supply chains in addition, (3) the chapter intends to demystify the major aspects associated with implementing RL in organisations. The chapter also aims at familiarising potential readers with the major references available in the field.
Publisher: College Publishing
Date: 08-2006
DOI: 10.3992/JGB.1.3.83
Publisher: Elsevier
Date: 2008
Publisher: Routledge
Date: 03-07-2013
Publisher: College Publishing
Date: 08-2008
DOI: 10.3992/JGB.3.3.88
Abstract: UNESCO, the UN nodal agency for education, science, culture and architecture, has made sustainability a key topic in its development oriented activities, and has launched a new initiative to address the increasing concern of non-sustainable urbanization which currently occurs in the Asia and Pacific region. It is a region of rapid change, cultural alienation and environmental crisis, with a threatening ide between city and countryside. This paper informs about the interdisciplinary research activities conducted by the newly established UNESCO Chair in Sustainable Urban Development for Asia and the Pacific. The Chair's roadmap for the next ten years to facilitate sustainable urban growth is explored and described in detail.
Publisher: Springer International Publishing
Date: 2016
Publisher: Springer International Publishing
Date: 2016
Publisher: MDPI AG
Date: 17-06-2023
DOI: 10.3390/BUILDINGS13061548
Abstract: Research is the systematic investigation into and study of materials and sources in order to establish facts and reach new conclusions [...]
Publisher: College Publishing
Date: 02-2010
DOI: 10.3992/JGB.5.1.36
Publisher: College Publishing
Date: 08-2007
DOI: 10.3992/JGB.2.3.59
Publisher: Routledge
Date: 03-07-2013
Publisher: Corporation Universidad de la Costa, CUC
Date: 18-01-2021
DOI: 10.17981/10.17981/MOD.ARQ.CUC.26.1.2021.07
Abstract: How are our cities confronting the challenges posed by a warming climate, the loss of bio ersity and major resource depletion? ―This article discusses the opportunities and benefits of applying the concepts of renaturalisiation and rewilding of cities. It introduces Nature-Based Solutions (NBS) in urban planning that are integrated with the aim to enhance urban resilience and to slow down the bio ersity decline, which can be applied in two areas: through the conception of new green neighbourhoods and through the regeneration and re-greening of existing but neglected parts of the city, such as postindustrial brownfields or economically weak districts. Contact to nature is essential for human existence, urban wellbeing and a good quality of life. Green spaces in cities –big or small– all contribute to health and wellbeing. However, many cities, including in the U.S. and in Europe, do not offer residents easy access to green space within the city. Improving better access to green spaces and extending gardens and parks will deliver a large number of benefits, such as ecosystem services, better water management for enhanced urban flood control, slowing down the bio ersity loss, contributing to food security, with the potential to restore damaged ecosystems. Furthermore, additional green space and NBS help to keep cities cool during heatwaves and improve the urban microclimate. As most of our cities keep growing and warming, the scale of the issue is significant. For ex le, in 2020, cities in the European Union were home to over 70 percent of Europe’s population, and this figure is expected to increase to over 80 percent by the middle of the century. This translates to 36 million new urban citizens in Europe by 2050 alone, who will need housing, employment, health care and access to green spaces (EU-Commission, 2018). In this context, nature-based solutions and re-greening can generate significant benefits for citizens, improve urban health and well-being, and offer an opportunity to effectively deploy nature in helping to resolve major societal challenges ―such as social inclusion, food security and disaster risk reduction. However, as the discussion of this article shows, it is essential that the design of NBS is fully integrated with other complementary planning interventions and seeks synergies across all sectors.
Publisher: College Publishing
Date: 07-2011
DOI: 10.3992/JGB.6.3.88
Abstract: Beyond energy efficiency, there are now urgent challenges around the supply of resources, materials, food and water. After debating energy-efficiency for the last decade, the focus has shifted to include resource and material-efficiency. In this context, urban farming has emerged as a valid urban design strategy in Europe, where food is produced and consumed locally within city boundaries, turning disused sites into productive urban landscapes and community gardens. Agricultural activities allow for effective composting of organic waste, returning nutrients to the soil and improving bio ersity in the urban environment. Urban farming will help to feed the 9 billion by 2050 (predicted population growth, UN-Habitat forecast 2009). This paper reports on best practice of urban design principles in regard to materials flow, material recovery, adaptive re-use of building elements and components (‘design for disassembly’ prefabrication of modular building components), and other relevant strategies to implement zero waste by avoiding waste creation, reducing harmful consumption and changing behaviour. The paper touches on two important issues in regard to the rapid depletion of the world's natural resources: the construction sector and the education of architects and designers. The construction sector: Prefabricated multi-story timber buildings for inner-city living can set new benchmarks for minimizing construction wastage and for sustainable on-site assembly. Today, the construction and demolition (C& D) sector is one of the main producers of waste it does not engage enough with waste minimization, waste avoidance and recycling. Education and research: It's still unclear how best to introduce a holistic understanding of these challenges and to better teach practical and affordable solutions to architects, urban designers, industrial designers, and so on. One of the findings of this paper is that embedding ‘zero-waste’ requires strong industry leadership, new policies and effective education curricula, as well as raising awareness (education) and refocusing research agendas to bring about attitudinal change and the reduction of wasteful consumption.
Publisher: Emerald
Date: 09-03-2015
Abstract: – This paper aims to present a survey of the perceptions of the barriers to implementing reverse logistics (RL) practices in South Australian (SA) construction organisations. Despite the extensive research on forward logistics and RL, there is a paucity of studies that examine the barriers to implementing RL particularly within the Australian construction industry. This study builds on the ongoing research being undertaken by the authors, entitled “Designing for reverse logistics (DfRL) within the building life cycle: practices, drivers and barriers”, which is examining the best practices and drivers that could be used as a “road map” for developing appropriate solutions for the successful implementation of RL. – Data were collected by utilising a triangulated data collection approach, a literature review and 49 questionnaires. The review of the literature identified 16 barriers to implementing RL. The quantitative survey data were subjected to descriptive and inferential statistics with correlation analysis to examine the relationships between different pairs of variables comprising RL’s critical barriers. – The following barriers were indicated as most significant: lack of incorporation of salvaged materials by designers regulation restrictions to usage of recovered materials and components potential legal liabilities higher costs and longer-time association with deconstructing buildings. The least ranked barriers were mostly drawn from the operational and industrial categories as being: organisational lack of support for deconstruction due to incompatible design lack of organisational support for deconstructing buildings due to higher health and safety risks and inadequate skills and experience for deconstruction (operational). The industrial barrier was related to “higher costs of salvaged materials in comparison to virgin products”. – First, the reported findings are focussed on one study that used questionnaire surveys within the construction industry therefore, the results may not be generalisable to other contexts. Further, studies should be conducted and extended to other industrial sectors beyond the construction industry. Second, the quantitative study ( n = 49) used a smaller s le, and the survey items were based on the review of the literature. – The identified barriers could be used as a “road map” for the development of appropriate solutions for the successful implementation of RL, and to improve the environment-related decision-making processes of contractors. – This study makes a contribution to the body of knowledge on the subject of RL within a previously unexplored SA context. In addition, the study provides some insights on the contributory effects of the barriers to the implementation of RL. It is the first work undertaken to determine the barriers to the adoption of RL within the SA construction industry.
Publisher: Ubiquity Press, Ltd.
Date: 2019
DOI: 10.5334/FCE.50
Publisher: Ubiquity Press, Ltd.
Date: 2019
DOI: 10.5334/FCE.53
Publisher: Elsevier BV
Date: 03-2014
Publisher: Emerald
Date: 28-01-2019
DOI: 10.12688/EMERALDOPENRES.12960.1
Abstract: Climate change is occurring around us and impacting on our daily lives, meaning that we have to deal with our cities in a different way. There is also increasing awareness of the need for daily contact with green spaces and the natural environment in order to live a happy, productive and meaningful life. This reflective essay tells the narrative of how urbanisation has been disconnecting humans from nature. Non-sustainable, non-resilient patterns of urbanisation, along with the neglect of inner-city areas, have resulted in fragmentation and urban decline, led to a loss of bio ersity, and caused the deterioration of ecosystems and their services. Urban regeneration projects allow us to ‘repair’ and restore some of this damage whilst enhancing urban resilience. Connecting existing and enhanced ecosystems, and re-establishing ecosystems both within cities and at the peri-urban fringe is vital for strengthening ecosystem resilience and building adaptive capacity for coping with the effects of climate change. Cities worldwide need to look for suitable solutions to increase the resilience of their urban spaces in the face of climate change. This essay explores how this can be achieved through the integration of nature-based solutions, the re-greening of neighbourhoods and by correctly attributing value to natural capital. Transforming existing cities and neighbourhoods in this way will enable ecosystems to contribute their services towards healthier and more liveable cities.
Publisher: College Publishing
Date: 08-2009
DOI: 10.3992/JGB.4.3.91
Abstract: This paper explores the origins of an air-condition dependency which evolved with 20th century architecture and is related to other developments that affected buildings in the last century, such as the lack of flexibility/adaptability of buildings and their short life span. It then looks at some passive design principles as frequently found in heritage buildings from the pre-air-conditioning era, which are based on heat avoidance and harnessing of natural energies. The paper concludes with a series of recommendations for a holistic pathway to zero-carbon, climate-adaptive buildings.
Publisher: College Publishing
Date: 04-2013
DOI: 10.3992/JGB.8.2.54
Publisher: Routledge
Date: 30-12-2020
Publisher: Elsevier BV
Date: 12-2011
Publisher: Elsevier BV
Date: 09-2016
Publisher: Elsevier BV
Date: 07-2013
Publisher: Informa UK Limited
Date: 30-11-2015
Publisher: Routledge
Date: 16-04-2014
Publisher: MDPI AG
Date: 18-10-2012
DOI: 10.3390/SU4102707
Publisher: Emerald
Date: 07-03-2016
DOI: 10.1108/IJOPM-01-2014-0024
Abstract: – A large number of benefits have been reported when reverse logistics (RL) is fully implemented in the construction industry. However, RL is yet to become common place in the construction sector, particularly in Australia. The particular sub-sector in which RL operates is small and weak and the remainder of the sector must embrace and accommodate it comfortably. Research is lacking on how to promoting RL in the construction industry. Very little has been done to identify the current practices that have the potential to promote RL industry-wide. The purpose of this paper is to identify the practices that work well in the sector, a strategy could be mapped out to promote RL to all stakeholders. – In order to fill the above gap, the present study used a mixed method approach to gather and evaluate current practices and their potential to promote RL in South Australia’s construction industry. Practices that were identified using a comprehensive literature review were evaluated with a questionnaire survey and series of interviews involving construction professionals. – The findings are that practices facilitating deconstruction is the most important, followed by practices facilitating the use of salvaged materials in new construction to promote RL in South Australia. Awareness of deconstruction benefits, challenges and procedures at the organisation level and facilities and services at industry level were associated with RL implementation. Availability of salvaged materials in the market was found to influence its use in new construction and as a consequence its demand. Designing for reverse logistics is another practice that could facilitate deconstruction and the onus of its promotion lies mainly with the designers. – This research was confined to one state in Australia. As such the generalisation to other states and other countries should be treated cautiously. – The findings of this study can help inform the industry and its stakeholders on areas that they need to concentrate more on to make the South Australian construction industry a fully RL integrated one. To that end the authors propose some recommendations arising from the findings reported here. – This study makes a contribution to the body of knowledge on reserve logistics within a previously unexplored South Australian context. In addition, the study provides valuable insights into the contribution of RL practices to the construction industry.
Publisher: MDPI AG
Date: 11-01-2011
DOI: 10.3390/SU3010155
Publisher: Elsevier BV
Date: 2013
Publisher: Elsevier BV
Date: 06-2018
Publisher: Routledge
Date: 03-07-2013
Publisher: Springer International Publishing
Date: 2019
Publisher: College Publishing
Date: 08-2009
DOI: 10.3992/JGB.4.3.44
Publisher: Springer International Publishing
Date: 2019
Publisher: Inderscience Publishers
Date: 2015
Publisher: Routledge
Date: 03-07-2013
Publisher: Elsevier BV
Date: 07-2012
Publisher: SAGE Publications
Date: 12-07-2013
Abstract: Sustainable waste management requires an integrated planning and design strategy for reliable forecasting of waste generation, collection, recycling, treatment and disposal for the successful development of future residential precincts. The success of the future development and management of waste relies to a high extent on the accuracy of the prediction and on a comprehensive understanding of the overall waste management systems. This study defies the traditional concepts of waste, in which waste was considered as the last phase of production and services, by putting forward the new concept of waste as an intermediate phase of production and services. The study aims to develop a demand forecasting tool called ‘zero waste index’ (ZWI) for measuring the natural resources recouped from municipal solid waste. The ZWI (ZWI demand forecasting tool) quantifies the amount of virgin materials recovered from solid waste and subsequently reduces extraction of natural resources. In addition, the tool estimates the potential amount of energy, water and emissions avoided or saved by the improved waste management system. The ZWI is tested in a case study of waste management systems in two developed cities: Adelaide (Australia) and Stockholm (Sweden). The ZWI of waste management systems in Adelaide and Stockholm is 0.33 and 0.17 respectively. The study also enumerates per capita energy savings of 2.9 GJ and 2.83 GJ, greenhouse gas emissions reductions of 0.39 tonnes (CO 2e ) and 0.33 tonnes (CO 2e ), as well as water savings of 2.8 kL and 0.92 kL in Adelaide and Stockholm respectively.
Publisher: Elsevier BV
Date: 02-2013
Publisher: Emerald
Date: 22-04-2020
DOI: 10.35241/EMERALDOPENRES.13580.1
Abstract: The ‘unplannable’ is a welcomed exception to the formal order of urban planning. This opinion article explores some ex les of informal urbanism and discusses its ambiguous relationship to public space and unplanned activities in the city. The informal sector offers important lessons about the adaptive use of space and its social role. The article examines the ways specific groups appropriate informal spaces and how this can add to a city’s entrepreneurship and success. The characteristics of informal, interstitial spaces within the contemporary city, and the numerous creative ways in which these temporarily used spaces are appropriated, challenge the prevalent critical discourse about our understanding of authorised public space, formal place-making and social order within the city in relation to these informal spaces. The text discusses various cases from Chile, the US and China that illustrate the dilemma of the relationship between informality and public rivate space today. One could say that informality is a deregulated self-help system that redefines relationships with the formal. Temporary or permanent spatial appropriation has behavioural, economic and cultural dimensions, and forms of the informal are not always immediately obvious: they are not mentioned in building codes and can often be subversive or unexpected, emerging in the grey area between legal and illegal activities.
Publisher: Journal of Urban and Environmental Engineering
Date: 27-12-2015
DOI: 10.4090/JUEE.2015.V9N1.003011
Abstract: Cities are frequently experiencing artificial heat stress, known as the Urban Heat Island (UHI) effect. The UHI effect is commonly present in cities due to increased urbanization, where anthropogenic heat and human modifications have altered the characteristics of surfaces and atmosphere. Urban structure, land cover and metabolism are underlined as UHI key contributors and can result in higher urban densities being up to 10°C hotter compared to their peri-urban surroundings. The UHI effect increases the health-risk of spending time outdoors and boosts the need for energy consumption, particularly for air-conditioning during summer. Under investigation is what urban features are more resilient to the surface layer Urban Heat Island (sUHI) effect in precinct scale. In the context of Sydney, this ongoing research aims to explore the most heat resilient urban features at precinct scale. This UHI investigation covers five high-density precincts in central Sydney and is based on a nocturnal remote-sensing thermal image of central Sydney taken on 6 February 2009. Comparing the surface temperature of streetscapes and buildings’ rooftops (dominant urban horizontal surfaces), indicates that open spaces and particularly streetscapes are the most sensitive urban elements to the sUHI effect. The correlations between street network intensity, open space ratio, urban greenery ratio and the sUHI effect is being analysed in Sydney’s high-density precincts. Results indicate that higher open space ratio and street network intensity correlate significantly to higher sUHI effect at precinct scale. Meanwhile, 10% increase in the urban greenery can effectively decrease the precinct temperature by 0.6°C.
Publisher: College Publishing
Date: 07-2012
DOI: 10.3992/JGB.7.3.131
Publisher: Canadian Center of Science and Education
Date: 16-04-2014
DOI: 10.5539/JSD.V7N3P23
Publisher: OMICS Publishing Group
Date: 2014
Publisher: College Publishing
Date: 02-2007
DOI: 10.3992/JGB.2.1.119
Abstract: This is a research paper with a focus on technical aspects of timber and on recent case studies, discussing the use of timber as multi-frame for multi-level residential buildings in Europe. The authors see this as a relevant topic within the context of the current environmental debate and the use of sustainable materials and construction methods. The conclusion suggests that timber is a high performance construction material adequate for multi-storey residential buildings, even in an urban context.
Publisher: Elsevier BV
Date: 12-2015
Publisher: Springer International Publishing
Date: 2016
Publisher: MDPI AG
Date: 15-03-2023
DOI: 10.3390/BUILDINGS13030777
Abstract: This study aims to analyse the transformation of urban greenery into greenfield housing development from 2019 to 2023 in the medium-sized city of Rzeszow (Poland) by evaluating the validity of references to the greenery in advertising texts on the developers’ websites. Furthermore, to assess the impact of the proposed greenery-related changes on urban green infrastructure. Through web-based research, 13 greenfield housing developments were identified. Changes in land use of areas that were allocated to urban green infrastructure were highlighted by applying GIS spatial analysis. The written and visual content analysis identified references to greenery in advertising c aigns. Finally, status relations analysis was performed to assess whether the specific advertising website presents an added ecological asset that can be considered as a nature-based solution or should be interpreted as greenwashing. The study revealed that the advertising websites for greenfield housing development constructed from 2019 to 2023 in Rzeszow do not represent an additional ecological asset, but committed greenwashing. All analysed housing estates trigger irretrievable environmental damage. The advertising material does not define the environmental indicators of the housing estates, including how the new construction would compensate for the destruction of natural habitats.
Publisher: Springer International Publishing
Date: 13-12-2019
Publisher: IEEE
Date: 06-2015
Publisher: MDPI AG
Date: 09-12-2013
DOI: 10.3390/SU5125289
Publisher: MDPI AG
Date: 08-03-2021
DOI: 10.3390/SU13052932
Abstract: How are our cities using nature-based solutions to confront the challenges posed by a warming climate, the loss of bio ersity and major resource depletion? This article discusses the opportunities and benefits of applying the concepts of regreening and rewilding of cities. The article engages with key sources and summarizes the background and development of regreening and nature-based solutions and important policies, concerns and perspectives of international and national organizations. It introduces the integration of nature-based solutions (NBS) as a strategy in urban planning with the aim to strengthen urban resilience and to slow down the bio ersity decline. Rewilding areas in cities has become a powerful strategy to bring back butterflies, insects, birds, and wildlife. In contrast to highly managed parks and gardens, these rewilding initiatives are leaving allotted spaces mostly uncultivated and self-regulated. Contact to nature is essential for human existence, urban wellbeing, and good quality of life. Green spaces in cities—big or small—all contribute to the health and wellbeing of residents. However, many cities do not offer residents easy access to green space within the city. Improving the better distribution of and access to green spaces and extending gardens and parks is likely to deliver a large number of benefits, such as: ecosystem services, better water management for enhanced urban flood control, slowing down the bio ersity loss, contributing to food security, and restoring damaged ecosystems. Furthermore, additional green space and NBS help to keep cities cool during heatwaves and improve the urban microclimate. Rewilding has emerged as an important part of new public parks and gardens. The next step is to up-scale citywide climate intervention strategies deployed to keep cities cool. However, as the discussion of this article shows, it is essential that the design of these NBS strategies is fully integrated with other complementary planning interventions and seeks synergies across all sectors.
Publisher: Routledge
Date: 24-07-2013
Publisher: College Publishing
Date: 02-2011
DOI: 10.3992/JGB.6.1.104
Abstract: This paper will first look at the timeline of important publications that have been published on sustainable design and have emerged from different schools of thought, to exemplify how gradually the notion of Green Urbanism evolved. It then identifies the intertwined principles for achieving Green Urbanism.
Publisher: College Publishing
Date: 08-2010
DOI: 10.3992/JGB.5.3.43
Location: United Kingdom of Great Britain and Northern Ireland
Location: United Kingdom of Great Britain and Northern Ireland
No related grants have been discovered for Steffen Lehmann.